An endoscope that can provide high-resolution optical images of the interior of a single living cell, or precisely deliver genes, proteins, therapeutic drugs or other cargo without injuring or damaging the cell, has been developed by researchers with the U.S. Department of Energy (DOE)'s Lawrence Berkeley National Laboratory (Berkeley Lab).

Emissions of carbon dioxide saw their largest ever single-year increase in 2010, with levels of the heat-trapping greenhouse gases surpassing the so-called "worst case scenario" that climate experts described just four years ago.